How is the theme of jealousy explored in Shakespeare's 'Othello'?

Through his portrayal of Othello, our tragic hero who we see transform from a noble soldier to an aggressive madman, Shakespeare expresses the harsh realities of jealousy. Iago declares to Othello, 'O beware, my Lord, of jealousy:/It is the green-eyed monster which doth mock/The meat it feeds on' (Act 3, scene 3). The use of imagery here with the adjectives 'green-eyed' and noun 'monster' creates a foreboding presence of a personified jealousy, that places Othello as its victim. Additionally, Shakespeare's use of the verb 'mock' and noun 'meat' illustrates the gruesome realities that jealousy can have on an individual, it toys with you and treats you like its prey, to be eventually fully consumed. These devices, combined with the dramatic irony of Iago disingenuously warning Othello about jealousy, creates a vivid presence of jealousy on stage, one that impacts the play's tragic hero in a way that makes him a piece of meat for the monstrous force of jealousy to slowly destroy and take over him.